Klauke 209R12 Aluminium Compression Cable Lug M12 120 mm²

For electricians and panel builders terminating aluminium conductors in industrial power distribution, the Klauke 209R12 compression cable lug provides a reliable, high-conductivity connection. This lug is engineered for 120 mm² aluminium cables and features an M12 bolt hole, making it suitable for heavy-duty electrical installations where secure, low-resistance joints are critical.

Key specifications

• Material: Aluminium
• Conductor cross-section: 120 mm²
• Bolt hole diameter: 12 mm (M12)
• Conductor compatibility: Round stranded (rm), sector stranded (sm)
• Number of fixing holes: 1
• Connection angle: Straight
• Inspection hole: Yes
• Surface treatment: Untreated
• Manufacturing method: Seamless drawn tube
• Palm width: 28 mm
• Palm thickness: 4 mm
• Barrel outer diameter: 18 mm
• Barrel inner diameter: 15.5 mm
• Overall length: 85 mm
• Standard compliance: Klauke internal standards for aluminium lugs

Why choose it

This lug is manufactured from high-grade aluminium, ensuring excellent conductivity and corrosion resistance. The seamless drawn tube construction provides uniform wall thickness and high mechanical strength, while the inspection hole allows visual verification of proper conductor insertion before crimping. Its design accommodates both round and sector stranded conductors, offering versatility in various cable types.

Ideal use cases

• Terminating aluminium power cables in switchgear and distribution boards
• Connecting transformers, motors, and other heavy electrical equipment
• Industrial installations where reliable, maintenance-free connections are required
• Retrofitting or upgrading existing aluminium wiring systems

Good to know

The lug is suitable for use with standard hexagonal crimping dies. It is not intended for fine-stranded conductors. Always follow the manufacturer's crimping specifications and use appropriate tooling to ensure a secure connection. The untreated surface may require additional anti-oxidation compound when connecting to copper busbars or terminals.